Ask Xulfiqar - An Automotive Encyclopedia

[Xulfiqar]

for flushing brake fluid - its a necessary requirement every year, takes 1 hour at max with one person alone. You will need 1 litre of brake fluid, (3 small bottles) - I used to buy gallon bottles of it in Pk. - Emarat used to sell it like that.

[arzaam.bhatti]

Mercedes dot 4plus fluid is also available in gallon bottles here by the way, i first thought it was odd about gallon size but it makes sense as thats all the fluid one needs, i discarded the little bit of remaining fluid in the bottle as i guess since the bottle had been opened the fluid will go bad stored in a not properly sealed container.

[Xulfiqar]

gallon bottle is only needed by workshops as brake fluid will go bad in a year even if the used bottle is capped off.

[AABBDDuullaahh]

@xulfiqar bhai the other day i got my Belta 1.0ltr scanned at Toyota motors and their scanner showed a code. Which was not removed even after clearing faulty codes multiple times. (There is no check engine light in the car display)
error code p2109 "Throttle / Pedal Position (Sensor A) Minimum Stop Performance"
what steps should be taken to remove it. The car really struggles idling with ac on and in drive mode.
need your valuable opinion

[afnan.bashir]

@Xulfiqar bhai the other day i got my Belta 1.0ltr scanned at Toyota motors and their scanner showed a code. Which was not removed even after clearing faulty codes multiple times. (There is no check engine light in the car display)
error code p2109 "Throttle / Pedal Position (Sensor A) Minimum Stop Performance"
what steps should be taken to remove it. The car really struggles idling with ac on and in drive mode.
need your valuable opinion

does your car has CNG installed?

[AABBDDuullaahh]

No cng

[Xulfiqar]

@Xulfiqar bhai the other day i got my Belta 1.0ltr scanned at Toyota motors and their scanner showed a code. Which was not removed even after clearing faulty codes multiple times. (There is no check engine light in the car display)
error code p2109 "Throttle / Pedal Position (Sensor A) Minimum Stop Performance"
what steps should be taken to remove it. The car really struggles idling with ac on and in drive mode.
need your valuable opinion

your pedal sensor is going bad.

[aqgmbest]

@xulfiqar sir i have city 2010
1. i have a problem k jab me car 100km/h per brake slow brake (not extreme) karta ho to i feel very dangerous type vibration from front side like grhhhh grhhhh heavy vibration i know abs ka sound bhi hota hai but yeh abs wala sound nhi hai mere khayal me
And jab 60 70 ya 80 pe brake karta ho normal braking then there is no noise whatsoever.
2. And when i brake in slow speed i dhah kar l
Awaz ati hai aisa laga boot me andar se kisi ne punch mara ho like DHAG !

Kindly help me out thank you

Sent from my iPhone using PW Forums

[hj2006]

Can an older model mehran be upgraded to EFI without changing its whole engine ?

[Xulfiqar]

@Xulfiqar sir i have city 2010
1. i have a problem k jab me car 100km/h per brake slow brake (not extreme) karta ho to i feel very dangerous type vibration from front side like grhhhh grhhhh heavy vibration i know abs ka sound bhi hota hai but yeh abs wala sound nhi hai mere khayal me
And jab 60 70 ya 80 pe brake karta ho normal braking then there is no noise whatsoever.
2. And when i brake in slow speed i dhah kar l
Awaz ati hai aisa laga boot me andar se kisi ne punch mara ho like DHAG !

Kindly help me out thank you

Sent from my iPhone using PW Forums

check the brake discs for run out - replace the items if they are old.

[wasim625]

Well i think i need a break flush. Cause 3 Days ago i was driving at 90/100 kms speed i had to break when i pressed the brake that freaking thing felt like its fading (it was breaking but not to the extent i was pushing the paddle) and then when i almost reached right on the other car in front me that "fade" thing went away itself and car slowed down to the required speed. (And my heart was banging my chest lol) 3 days since that incident it didn't happened again by the way.
@xulfiqar
Bhai do you think its related to break flush? Or i need new rotors or new break shoes?

By the way my roters are 70% bad (i think). Changed break shoes lately they still have 65% breakin material on them. (Though i am not happy with there performance pahly waly achy they)

The only thing i have no info on is the break fluid. Its levels are good but when it actually was changed i have no idea about that.

[wasim625]

No other grease can't be used. If you have it already remove it. Use silicone grease and anti seize I think 3m silicone paste will do too

Errm - yesterday i was in the market to hunt down the silicon grease. There i came across a Break Calliper Grease but it didn't had any silicon specifications on it (not even the word "silicone" on it) i didnt buy it - do you think we can use it??

[Driver41]

check the brake discs for run out - replace the items if they are old.

What should be acceptable thickness of brake discs?

[Xulfiqar]

Errm - yesterday i was in the market to hunt down the silicon grease. There i came across a Break Calliper Grease but it didn't had any silicon specifications on it (not even the word "silicone" on it) i didnt buy it - do you think we can use it??

do you recall the brand name?

[afnan.bashir]

i suppose caliper grease is the silicone grease.

[wasim625]

do you recall the brand name?

Umm no i was more into there formulation couldn't notice the names.
EDIT:: One thing i noticed was the box say lithium "smothing" brake grease. With some 250C flash point.
That lithium bothered me. Aren't grease with lithium petroleum based?

[wasim625]

i suppose caliper grease is the silicone grease.

Hmm, I'll get the pic next time will post here for you guys.

[wasim625]

Well i think i need a break flush. Cause 3 Days ago i was driving at 90/100 kms speed i had to break when i pressed the brake that freaking thing felt like its fading (it was breaking but not to the extent i was pushing the paddle) and then when i almost reached right on the other car in front me that "fade" thing went away itself and car slowed down to the required speed. (And my heart was banging my chest lol) 3 days since that incident it didn't happened again by the way.
@xulfiqar
Bhai do you think its related to break flush? Or i need new rotors or new break shoes?

By the way my roters are 70% bad (i think). Changed break shoes lately they still have 65% breakin material on them. (Though i am not happy with there performance pahly waly achy they)

The only thing i have no info on is the break fluid. Its levels are good but when it actually was changed i have no idea about that.

Bumpzz

[mairajbhaii]

Someone please tell me a good mechanic in Karachi,
for Daihatsu Charade CB Engine .....
Am still on road, topping up oil and bearing the DIESEL noise in its engine......
The main cause is Crankshaft, main bigen issues....
Kindly suggest someone
Message me 0321-2102484

[Shoaibm]

Hi Xulfiqar, in some previous post, you recommended Mobil multi-vehicle ATF as a good alternate of Honda DW-1 but I am unbale to find it in ISB/RWP. For some reason i don't want to go with DW-1, so would you recommend Caltex Texamatic 1888 or ZIC ATF III for Accord CL9?